CONFINEMENT IN 3 DIMENSIONS AND THE ELECTROWEAK PHASE-TRANSITION

被引：11
|
作者：
BUCHMULLER, W
FODOR, Z
机构：
[1] Deutsches Elektronen-Synchrotron DESY
来源：
PHYSICS LETTERS B | 1994年 / 331卷 / 1-2期
关键词：
D O I：
10.1016/0370-2693(94)90952-0
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The infrared behaviour of the standard model at finite temperature is determined by the confining phase of the SU(2)-Higgs model in three dimensions. Due to the Landau singularity of the three-dimensional gauge theory the perturbative treatment of the electroweak phase transition breaks down for Higgs masses above a critical mass m(H)c. Based on a renormalization group improved effective potential we find m(H)c approximately 70 GeV. The scalar self-coupling has a Landau-type singularity also in the abelian U(1)-Higgs model, which leads to a breakdown of perturbation theory in the symmetric phase.
引用
收藏
页码：124 / 130
页数：7
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